I've been trying out BookOrbit, a self-hosted library for ebooks, PDFs, comics, and audiobooks that runs with Docker and PostgreSQL. It's AGPL-3.0 with browser readers built in, and it can hook into OPDS readers, Kobo sync, and KOReader. I wrote up my Docker Compose setup pinned to v3.1.0 along with a hardlink gotcha I hit with Book Dock.
TechHutBookOrbit: One Library for Ebooks, PDFs, Comics, and Audiobooks - TechHutSet up BookOrbit, a Docker-based self-hosted library for ebooks, PDFs, comics, and audiobooks, then explore its readers, metadata, users, and device integrations.